The purpose of this exploratory study was to identify the major mental skills used by successful hockey goaltenders. In-depth semi-structured interviews were conducted with seven goaltenders and eight goaltender coaches from the Quebec Major Hockey League (QMJHL) to be able to get a better knowledge on the topic. Afterwards, we were able to compare the data from the goaltenders and their coaches in order to get a precise picture of the mental characteristics associated with goaltenders in hockey. Our results demonstrate that the same major psychological factors would be identified by the selected athletes and their coaches. It was therefore possible to identify nine psychological attributes from the answers of both parties. More precisely, the nine psychological attributes related to hockey goaltender’s performance are personality traits, resiliency, confidence level, passion, mental readiness, work ethic, optimal concentration level, put into perspective events and emotion control. From a general perspective, our results are consistent with results from other research on the mental aspects of elite athletes. On a more narrow perspective though, we can clearly observe a lack of scientific evidences on the topic of sport psychology related to hockey goaltenders. This study therefore becomes an important first step in the identification of the performance psychological attributes related to the position of goaltending in hockey.